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On the history of the development of wireless Chargers Nov 24, 2016

As early as in the 1830 of the 19th century, Michael Faraday discovered that generate a current in the magnetic field around the wire. In the 1890 of the 19th century, the Serbia-born scientist Nikola Tesla filed for a patent in the first.

But it is a pity, a delay in this study for a century. The biggest obstacle is the transmission efficiency is too low and there is a risk. Electromagnetic radiation is only suitable for transmission of information, and is not suitable for transmitting energy.Because no directional radiation at all, energy will be wasted in useless space. Ideas using directed electromagnetic radiation, such as laser, but its operation and highly dangerous.

Department of electronic engineering, City University of Hong Kong Professor Xu Shuyuan has successfully developed in the early years of "radio pool charging platforms" can be charged a number of electronic products in a platform, no externalwires through low-frequency electromagnetic auto-recharge, charging time is no different from the traditional Chargers. But the technology still needs contact with the charger, which uses near field electromagnetic coupling.

United States Massachusetts Institute of technology researchers has made new progress in the wireless transmission of electricity, they used a two-meter power, "weekend" light a 60-watt light bulb.

Suoliyaqiqi design, non-distance wireless energy transmission radiation limits, thereceiver is smaller then the distance is short. He calculated a laptop the size of objects can be accepted within a few meters range of wireless energy transfer, "so each room install a source, you will be able to House laptop power supply. "

Suoliyaqiqi hope that through the use of different materials and improving technology, to increase the efficiency of 70% to 80%. They believe that improved equipment will be 3-5 year for laptops, mobile phones, and other devices for Wireless charging.